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Syntax Definition w-bnj15 29071
Description: Extend wff notation with the following predicate: R is both well-founded and set-like on A. (New usage is discouraged.)
Hypotheses
Ref Expression
cA class A
cR class R
Assertion
Ref Expression
w-bnj15 wff R FrSe A
See definition df-bnj15 29072 for more information.
Colors of variables: wff setvar class
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